Many, I believe , were cornered, or rather, pressed into the duel by the honor standards of the time.
What I mean is that they fell victim to the situation,whether their hearts were in it or not. Much dueling was done with blades and blood drawn was usually enough to settle accounts. However, if pistols were chosen, and the the wrong done you was grievous ; resolve, determination, and steadfast calm would be a tough thing to come up against . Some duels were nothing more than legalized murder.
About 40 miles from here is a place called " Last Duel Park"in Perth Ontario. It was the last duel fought in Ontario, and One of them was killed. The pistols are on display at the local museum. JohnWilson and Robert Lyon were both law students. June, 1833. Separated by 60 feet, they fired simultaneously , twice. The first round both missed.The 2nd round ended with Lyon's death. The cause of the duel was apparently some remarks made concerning a young lady. She eventually married Wilson.
What is interesting is that after the 1st exchange,they were ready to end it there, but the 2nds were persistent that they continue.